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Mm-wave harmonic generation in an array of SIS junctions

B. Billade ; Alexey Pavolotsky (Institutionen för rymd- och geovetenskap, Avancerad mottagarutveckling) ; Victor Belitsky (Institutionen för rymd- och geovetenskap, Avancerad mottagarutveckling)
Journal of Physics: Conference Series. 11th European Conference on Applied Superconductivity (EUCAS), Genoa, Italy, Sept. 15-19, 2013 (1742-6588). Vol. 507 (2014), PART 4,
[Konferensbidrag, refereegranskat]

We report the first experimental off-chip detection of frequency multiplication in a distributed array of Superconductor-Insulator-Superconductor (SIS) junctions. A test device consisting of series array of 68 Nb/Al-AlOx/Nb tunnel junctions was designed to study generation of the second harmonic. We measured extremely sharp spectral signals, associated with the × 2 frequency multiplication. Distinct single and multi-photon processes were observed in the test device response operated in quantum mode. The mechanism of device saturation was experimentally studied. The test device when connected to the input of an SIS mixer, and pumped, showed 10-20% increase in the SIS junction dark current.



Denna post skapades 2015-05-06. Senast ändrad 2016-07-01.
CPL Pubid: 216580

 

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Institutioner (Chalmers)

Institutionen för rymd- och geovetenskap, Avancerad mottagarutveckling

Ämnesområden

Atom- och molekylfysik och optik

Chalmers infrastruktur